Ratchet wrench



FIG. 1 is a perspective view of the ratchet wrench showing my new design;

FIG. 2 is an enlarged side elevational view of the ratchet wrench showing my new design, the opposite side being a mirror image thereof;

FIG. 3 is a front plan view thereof; and,

FIG. 4 is a rear plan view thereof.

All broken lines are for illustrative purposes only, and form no part of the claimed design. 

The ornamental design for a ratchet wrench, as shown and described. 